Crusher



June 19, 1923. v v 1,459,340 D. 'J. NEVILL CRUSHER Filed June a", 1920 2 Sheets-Sheet 1 INVENTOR. 0. J N5 v11. L.

, Y, W 5773 WATTORNEY.

l AS9349 June 19, 1923.

D. J, NEVILL CRUSHER Fiied June 8. 2 sheets-sheet 2 L. M J

k "in p W A TTORNEYQ Patented June 19, 1923, v v I A I rrss PATENT: cre ice.

DAVID J. NEVILL, ornnnvnia, COLORADO, AssIeNon 'ro THESTEABNS-ROGER MANUFACTURING cor/man A conronarron. or] COLORADO.-

batman. v

Application filed June 8, 1920; Serial No. 387,452.

To aZZw/iom it may concern: 1 I journal bearings on the side plates of the Be it known that'l; DAVID J. NEVILL, a frame is composed of a hollow cylindrical subject of George V, King of England, re'-" body portion rigidly mounted upon a siding at Denver, in the county of Denver shaft 12 and a sectional facing 13 which is 5 and State of Colorado, haveinvented cerbolted upon the peripheral surfa'cethereof.

tain newand useful Improve-mentsin Cr'uslr The facing has radially projecting, taperers, of which the following is a'specification, ing teeth 145 which are arranged circu1n- This invention relates to crushing ma ferentially in rows to work in grooves at thechines and more particularly to crushers of lower'portion of a reciprocating jaw 16 10 the type adapted to reduce coal and other which cooperates with the roll toredu'ce the similar materials to a uniform fineness material passing between'them to 'a'desired' through the medium of a rotating crushing size. V I 1 roll. I v i The jaw consists of a'cur-ved plate reen-' It is an object of the presentinvention to forced by external ribs and provided at its 15 provide a machine of this character which lower end with atransversely extending claw is particularly adapted tocrush large sizes for itspi'votal support upon shaft'18 which of coal to a desired fineness without preparis'slidablysupported in slots 19 of the side atory comininution, by the use of a simple plates of the frame; and efficient means for breaking the coal be- The shaft 18 is adjustably and y ieldinglyc 2o fore isreaches thecrushing roll." held in its normal positionin which its 7 Another object of the invention is to pro wern iS 51 fl'om t t h Ol vide a simple adjustment to place the ma; ing face of the crushing'roll in close proxchine inan idle condition when the coal fed imity her by me ns of tension devices therein'to is of a size not requiring further applied to parallel cranks 17 at its ends-pro 25 reduction. 1 v jecting outside the s lotsin which itis'supvv Another object is to provide in a crushing ported. I 1 machine of the character described, a prod- Eaoh tension device consists of a rod 20 uct of uniform size by providing a grooved pivotally connected with a wrist 17 on the surface in cooperative-relation to a periphrespective crank by an integral'eye 20*. A

3o erally toothed crushing roll, and stillfursleeve 24 on .the rod 20' extends loosely,

ther objects reside in details ofconstruction through a slot 25 in a bearing block 26 and arrangements of parts all of whichwill formed integral With the respective side fully appear in the course of the following plate of the frame, and terminates in a head description-made with reference to the 9c. 27 for the abutment of a tension spring 22. companying' drawings in the three viewsof The rod isjthreaded for the application Y which corresponding parts are indicated by of nuts 28 which through the medium of a like characters of reference, and in which- Washer 29 of larger diameterbear upon the Figure 1 is a partially sectional plan View opposite end .ofthe t-ensio 'sp i gof acrushing machine in which myimprOVe- 'The, sleeve has underneath its flange o 40 ments are embodied; posite rounded ribs 30 which engage in'core Figure 2, a section along the line 2- 2,- respondingly formed. seats in the faceof the Figure 1, and l 1 bearing block to permitof an oscillating Figure 3,1a fragmentary section of'the movement of the rod When the shaft 18 is frame of the machine, showing the'tension adjusted by'reversing the position of its 45 device by which oneof the cooperating cranks, and a nut 31 on the rod bearsupon parts of the crusher is adjustably and yield a washer 32 engaging rounded surfaces 33 ingly held in its operative position.- i on; the, opposite side of the bearing block Referring more specifically to the draws to limit'the outward movement ofthe rod ings, the reference character 2'designatesthev in the sleeve, l v

50 frame of the crushing machinewhichis-c0m-- 'Thec extreniitiesof-the crank wrists 17* 05 posed of side members 3 reenforcedby ribs projecting outside the eyes ofthe respectivev on their outer surfaces and connected, in. tension rods are squared for-the; application parallel relation to each other by cross ofawrenchjwhen it is desired toreversefthe pieces'5,'-6"and"7 anda curved cover plate 8. position of-the cranks against the opposing 55 A crushing roll 9 rotatably mounted in action of the tension springs,for the purl pose of slidin-gl y adjusting the position of the shaft upon which the jaw is supported,

in the slots through which its ends extend.

The upper free end of the'jaw has in its exterior surface two grooves of dove-tailed section for the attachment of two straight faced bearing blocks 8 engaged by heccentries 35 on'a driving shaft 36 which is "rotatably mounted in journal bearings on the side members of the frame.

A pinion 37 atan end of thedriving shaft.

meshes with agear wheel 38 on-the shaft 12 of thecru'shing roll and a pulley 39 at the opposite end of the driving shaft'provides for its'connection witha conveniently located sourceof motive power;

The lower portion of the'jaw is recessed for the application of a die e0 which; is

grooved as at 41 to receive the teeth of'the crushing roll; and which is rigidly fastened to thejaw by bolts 42. v v

Rigidly secured between the side plates of theframe and extending slantingly over the crushing roll and in opposite relation to the reciprocating jaw, is a breaker jaw 43 which ifso desired may have its workingsurface serrated to increase its effectuality in the operation of the machine. I l I The coal or other material to be reduced s fed between the jaws 16 and 43 and by the reciprocating movement of the one with re-,

lation to the other is broken into small pieces before it enters the spacebetween the movable jaw and the crushing roll. 7

It will be observed that at the point of nearest approach of the roll to the grooved surface of the moving jaw the latter has but very little displacement, owing to .the'proximity of the relatively stationary shaft 18 upon which it is pivotallysupported and. that in consequence the space between the cooperating crushing parts remains practically unchanged during the reciprocating movement of the jaw, to insure a product of substantially uniform size; 7 l

- The tension springs 22 are of suflicient strength to withstand the o'rdinary'crushing pressure and function principally as a safety measure to permit of a yielding movement of the lower end of the pivoted; jaw when metal objects or other hard foreign matter inadvertently fed into the machine with the coal, attempt to pass through the narrow space between the aw l6 and the crushing roll,

- In case the material fedinto the machine is of 'a size not requiring reduction, the shaft is slidingly adjusted in the slots inwhich it is supported by reversingthe position ofits cranks, thereby separatingthe reci rocating aw fromthe crushing roll to an inoperative position, 7

The machine in its idle condition acts as achute for the passage of the material to the I claim and desire to signature.

crushed coalbins and as such allows of a continuous operation of the plant irrespective of the size of the material delivered thereto, it being understood that the width of the space between the breaking jaws is suflicient to receive lumpsof coal of a size which ordinarily must be broken before being fed to the crushing machine;

Having thus described'my invention what secure by Letters- Patentis: j

Lln a crusher, the, combination of a rotary vcrushing roll, a jaw; cooperating therewith, a rotary and laterally movable shaft upon which the jaw is movably sup-v ported, and a resilient element having crankconnections with the shaft and adapted to hold it in either its normalposition with re.

in which it is further separated therefrom.

2. In a crusher, the combination of a j rotary crushing roll, a jaw cooperating shaft. having a lateralarm upon which the reciprocating member is pivotally supported, said arm being adjustable from one determinate position to anothe'riby rotation lation to the roll or in an adjusted position 'ciprocating movement relative to the other, a

of the shaft, whereby to vary the distance between the crushing members, and a resilient element acting upon the shaft to -hold the arm in its adjusted positions. 1 a

4. In a crusher,thecombination of two crushing members one of which has a reciprocating movement relative to the other, a shaft having a lateral arm upon which the reciprocating member is pivotally supported, said arm being adjustablefrom one determinate position to another by rotation of, the shaft, whereby to vary the distance between the-crushing members, and aresiL ient element to hold the armin its adjusted positions. v j

5. In a crusher, the combination of two crushingmembers one of which hasa reeiprocating movement relative tothe other, 7

a support for V the reciprocating member, mounted for adjustment about an axis to determinate positions at opposite sides there-f of, whereby to vary the distance between the crushing member, and a resilient element to.

hold the arm in itsadjusfced positions.

testimony-whereof Ihave aflixed-m DAVID, J, NEVILL, 

